CertLab — buttertea.studio

Study smarter, pass with confidence.

CertLab is a focused practice app for certification exams. Work through hundreds of multiple-choice questions, get instant feedback, and track your progress over time.

No fluff, no subscriptions — just the practice you need to feel ready on exam day.

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200+ practice questions

Comprehensive question bank covering all exam topics with detailed explanations.

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Instant feedback

See whether you're right or wrong after each answer — or disable it to simulate exam conditions.

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Progress tracking

Review your quiz history to see how your scores improve over time.

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Resume where you left off

Quit mid-quiz and pick up right where you stopped.

Support

Have a question or found a bug? Reach out and I'll get back to you.

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Privacy Policy

CertLab does not collect any personal data. All data stays on your device.

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